[en] An evaluation of the cross sections of ²³⁵U below 1 eV was recently completed at Battelle-Northwest (BNW). In this evaluation, energy-dependent data of all of the partial cross sections, their ratios and total were simultaneously fitted by a nonlinear least-squares fitting code, SIGLEARN, to a modified Adler-Adler multilevel resonance fission and multilevel Breit-Wigner scattering formalism. The data of eight relative fission cross section measurements were compared to the evaluated shape using SIGLEARN to establish best-estimate normalization values at 2200 m/s and their uncertainties on a consistent basis. The indicated uncertainties of these shape-fitted normalizations due to uncertainties in: the evaluated shape, deviations from the evaluated shape, data precisions, energy region used in the normalization, internal data discrepancies and other unknown factors were less than one percent for six of the experiments. The most significant problem appeared in the thermal normalization of the data of Deruytter and Wagemans where the possible normalization values differed by over two percent. Values of the integral fission cross section from 7.8- to 11-eV were then calculated by a consistent method for each data set renormalized to sigma⁰/sub f/ = 583.54 b, the value proposed for version V of ENDF/B. The resultant values of the fission integrals were then evaluated by a working group to obtain a best-estimate value to which fission data sets, which do not go down below 1 eV, could be normalized. The value obtained was 241.24 b.eV but an uncertainty of nearly three percent is required to reasonably cover the spread of the values